Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Scree Plots of Sum-of-Errors of k-Means Clustering on Each Day
The horizontal axis is the cluster number k. The vertical axis is the sum of errors of samples to cluster centers. Weak elbow points can be identified for day 4, day 5, day 6, and day 7 but not for day 3.
